Paving joint construction



v. v. MLCOM I 2,184,148

PAVING JOINT CONSTRUCTION Filed June 1, 1937 p r g i INVENTOR.

ATTORNEY.

Patented W PAVING .i OINT oows'rnpc'rron Vincent V. lilialeo, Mariemont, Ghio. assignor to The Philip i'larey Manufacturing Company, a corporation oi (ihio Application June 1. 1937, Serial No. 145,676

7 Claims.

This invention relates to a paving joint construction and method of forming same, and particularly pertains to a paving composed of spaced apart sections which are preferably poured in place and separated by a joint construction to provide for expansion and contraction between said sections and seal the joint space.

, The joint construction is adapted to be used with or without a load transmitting means extending across the joint space from one paving section to another. If load transmitting means be provided it may be any one of the conventional types, such as dowel pins and the like, arranged to provide for relative movement between the sections. I

The invention generally described comprises paving sections spaced apart to provide a joint space in which filling material is secured to form a continuing contacting seal across the joint space between the sections to prevent infiltration oi foreign matter into the joint space. Adjacent ends of the paving sections are formed with chambers opening into the joint space and adapted to receive filling material poured to fill the joint space and chambers. Molding plates, preferably retained in place to become a permanent part of the pavement, may advantageously be used for forming the chambers. They may be of semi-rigid construction, such as sheet metal, which is easily stamped or rolled from a blank to the desired form. The chambers are preferably formed on each adjacent section end, and are also preferably of the same shape although this is not essential.

Therefore in constructions of this type, the filling material has been made up into preformed strips having a contour conforming to the shape of the-chambers. It is, however, impractical if not impossible to form them sufficiently true and perfect in shape to make a seal with the chamber walls so as to prevent the infiltration of foreign material. Moreover, it is impractical to fit them into place, and would involve much labor and time, as well as the handling of extremely long strips, as they would need to be as long as the pavement is wide to prevent having any joint seams throughout their lengths.

For a better understanding of the invention reference may be made to the single figure of the drawing which is a cross-sectional view of a section of paving embodying the invention.

Referring specifically to the drawing in which like numerals are used to designate like parts, numeral l designates a foundation of earth, cinders, gravel or the like which is leveled or (iii smoothed to the desired contour and prepared to receive paving material poured or otherwise superposed thereon. The paving material is in the form of concrete sections 2 and 3 poured in place, when the concrete is in a plastic condition, on op posite sides of a joint device, designated generally by numeral t, which may be disposed transversely at spaced intervals along the length of the pavement or disposed longitudinally to divide the pavement into lanes. The concrete is allowed to set or harden in place. order to transmit the load across the joint space from one paving section to another a load transmitting device, designated generally at 5, may be provided. Other types of load transmitting devices, such as dowels or the like, may be employed, but the one shown is preferred in that it provides suitable means for'holding the joint device in position without the use of stakes or other special holding means. This device comprises a series of separate metal members ii, each having a foot I and awing 8 extending from opposite ends of a web portion 9. These members are assembled with the wings of alternating load transmitting members disposed in opposite directions. In order to hold the separate or individual load transmitting members together as a unit and to facilitate relative movement of the feet, the foot portions may be advantageously supported in a base member it.

This base member is formed of any suitable material, preferably relatively light metal, such as sheet metal, that may be readily bent to form a chamber or recess M between the body portion [5 and end portions it. An intermediate portion l'l between the body and end portions slightly exceeds in height the thickness of the foot portions, thereby having them fit snugly with the chamber or recess M. The edges It of the end portions are cut irregularly to conform to the 1 contour of the load transmitting means and to fit snugly against the molding plates H) which are seated upon the foot portions and against the web portions of the load transmitting means. The ends may preferably be turned up at It to seat against the plates. The web portions of the load'transmitting members provide a back support for the plates so that they may be held spaced apart while the concrete sections are being poured in place. Any suitable means may be employed for holding the plates spaced apart. For example, a temporary wooden strip or other suitable means (not shown) may be inserted between the plates and then removed after the concrete has been poured in place. After the concrete hardens, one plate and alternate wing porrnaterial, they could not pull them completelyoutj There would always be continuing 'points of contact between the inner wallsof the of contact.

ticns are securely engaged with the respective ends of adjacent sections. Engagement of the plates with the paving sections is secured by a longitudinally disposed embossment 20 that is embedded within the ends of adjacent sections. 'llfis embossment is preferably continuous and non-interrupted throughout its length rather than being divided in two or more spaced apart embossments. On the other side of the plate, there is a chamber 2i adjacent the joint space. The side walls 22 of the embossment are preferably cambered so that there will be provided continuing contact between the joint filling material 23 if the plates and the slabs in which they are embedded should be drawn away from the joint filling material. The camber of walls of the embossment is effected by having the angles between the inside of the side walls disposed at less than right angles to the inside of the intermediate wall M. They should not be disposed at greater than right angles but may be provided at right angles or less to obtain continuing contact ,with the filling material.

After the concrete is poured in place and the temporary filling means for the space is withdrawn, the resulting space may be partially filled with any suitable material 25 which is preferably compressible and elastic. Cori: granules or the like are typical of various materials of this character. The space is conveniently filled up or near to the bottom walls of the embossments on the plates, and then the top part of the space, including the chambers in the plates, are filled with the joint filling material 23, above referred to. This may be asphalt or other'suitable material that is poured in place and is adapted to con form to the contour of the joint space, particularly the chambers oi the plate, and effect a continuing contacting seal across the joint space. If the contraction of the paving sections should pull the plates or either of them from the filling chambers in the plates and the walls of'protuberances of the filling material which fills the chambers. The extent or width of the protuberances on the filling material would such as to provide for maximum contraction of the paving sections.

The filling material could be applied to fill completely the joint space fiush with the tread surface of the pavement or could terminate slightly therebelow. By reason of the compressible and elastic material therebelow, extrusion of the filling material from the 'joint space is prevented.

While I have described one preferred embodiment for carrying out the invention, it will beunderstood that there may be various changes as to detail and that the invention is not limited except as set forth in the appended claims.

I claim:

1. A paving construction comprising paving sections spaced apart to provide a space therebetween, recesses provided in adjacent ends of the paving section, compressible material substantially filling the space between the ends of the sections below the recesses, and waterproofing filling material poured in place to fill the recesses and the portion of the space therebetween for providing a continuous contact with said sections and substantially fill the space above the cornpressible filling material.

apart plates to provide a space therebetween, re-

2. A paving construction comprising paving sections spaced apart to provide a space therebetween, recesses provided in adjacent ends of the sections having a side wall disposed at no greater than a ninety degree angle to the vertical plane 5 through the bottom of the recesses, compressible material substantially filling the space between the ends of the sections below the recesses, and waterproofing filling material poured in place to fill the recesses and the portion of the space therebetween for providing a continuous contact with said sections and substantially fill the space above the compressible filling material.

3. A paving construction comprising spaced cesses provided in the plates adjacent the space, granular compressible material substantially filling the space between the ends of the sections below. the recesses, and waterproofing filling material inserted to fill the recesses and the portion of the space therebetween and also substantially fill the space above the compressible filling material.

4. A paving construction comprising spaced apart plates to provide a space therebetween, recesses provided in the plates adjacent the space having a side wall disposed at no greater than ninety degrees to the vertical plane through the bottom of the recesses, granular compressible material substantially filling the space between the ends of the sections below the recesses, and waterproofing filling material inserted to fill the recesses and the portion of the space therebetween and also substantially fill the space above the compressible filling material.

5. A paving construction comprising spaced apart plates to provide a space therebetween, recesses provided in the plates adjacent the space, compressible material substantially filling the space between the ends of the sections below the recesses, and waterproofing filling material pursued in place to fill the recesses and the portion of the space therebetween for providing a continuous contact with the plates and substantially fill the space above the compressible filling material.

6. A paving construction comprising spaced apart plates to provide a space, recesses provided in the plates adjacent the spacahaving a side wall disposed at no greater than ninety degrees to the vertical plane through the bottom of the recesses, compressible material substantially filling the space between the ends of the sections below the recesses, and waterproofing. filling material poured in place to fill the recesses and the portion of the space therebetween for providing a continuous contact with the plates and substantially fill the space above the compressible filling material.

7. A paving construction comprising spaced apart plates having a space provided therebetween, a recess provided in each of the plates opening into said space, compressible and elastic filling material'substantially filling the space below the recesses, and waterproofing filling material superposed on the compressible and elastic filling material and extending across the space into the recesses ogf the spaced apart plates to provide continuous contact between said plates.

and substantially fill the space above the com- 70 pressible and elastic filling material.

' VINCENT V. MALCOM. 

